Topic Test Answers

The events that lead to genetic drift are _______.

Which of the following statements about exponential growth curves is true?

There are approximately 30,000,000 white-tailed deer in the United States, which covers 3,536,000 square miles. What is the population density, rounded to the nearest whole number, for the white-tailed deer?

Natural selection is an evolutionary mechanism by which _______.

Why was the reduction of the bison population to under 1,000 individuals a bottleneck event for the species?

Which of the following is not a reason that populations display a regular (evenly spaced) distribution?

The _______ is the total number of organisms that an ecosystem can support.

Lions live in groups called prides. Lion populations would most likely fall in which category of population distribution?

Which of the following limiting factors would be directly affected by a drought?

Which method to determine population size is the least invasive?

The native range of a species includes all areas in which it lives.

Directional selection can be distinguished from disruptive selection by _______.

Why do disruptive selection pressures tend to favor rapid evolutionary changes?

The introduction of a virus to control an invasive species is an example of _______.

If China has a population of 1,355,935,022 people and an area of 3,705,405 mi, what is the population density of China?

The mark and recapture method of determining population size is always more effective than the sampling method.

The rarest distribution pattern in nature is random.

Bottleneck events are always caused by the death of most of a species’ population.

Physical removal of an invasive species is an example of _______.

Which of the following is not a potential result of a bottleneck event?